protecting snf employees from bloodborne pathogens...
TRANSCRIPT
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Protecting SNF Employees from Bloodborne Pathogens and Aerosol Transmissible Diseases
Kevin Riley, PhD MPH
UCLA Labor Occupational Safety and Health Program (UCLA-LOSH)
September 28, 2017
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Overview of Presentation Introduction
What are BBPs and ATDs? Where do you encounter them in your work?
What measures are required by Cal/OSHA to protect you and your coworkers?
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Acknowledgments
This module was created by the
UCLA Labor Occupational Safety and Health Program (UCLA-LOSH)
under a grant from the
National Institute for Environmental Health Sciences (NIEHS) Worker Training Program
(Grant no. 3U45ES006173-25S1)
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Sources of information on infection control
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Healthcare Worker Protection
Guidance documents CDC and other government agencies Professional guidelines
Licensing and certification
Union provisions Contract language Collective action
Cal/OSHA regulations
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What is Cal/OSHA?
Every employer shall furnish employment and a place of employment that is safe and healthful for the employees therein.
California Labor Code Section 6400
“
”
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Cal/OSHA and Biological Agents
1993: Cal/OSHA BloodbornePathogen Standard (Title 8, §5193)
2009: Cal/OSHA Aerosol Transmissible Disease Standard (Title 8, §5199)
Other standards for chemicals, MSDs, slips and falls, workplace violence
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What are BBPs and ATDs?
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An infectious agent, carried in the blood or other bodily fluids, capable of causing infection in others.
The epidermis of intact skin is an effective barrier against most infections. A BBP infection requires:• A skin break (puncture, skin
abrasion)• Mucous membrane contact
(spray or splash) to: • Eyes• Mouth• Genitalia
Bloodborne Pathogens
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Bloodborne Pathogens Most important:
HIVHepatitis BHepatitis C
Others: SyphilisMalariaViral hemorrhagic fever
(Ebola, Marburg, Lassa) Gonorrhea?Babesiosis*Brucellosis*Cytomegalovirus*Arboviruses (viral meningitis)*
* = only by transfusion. Probably NOT by needlestick)
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Bloodborne Pathogens
Cal/OSHA: “…Pathogenic microorganisms that are present in human blood and can cause disease in humans. These pathogens include, but are not limited to, hepatitis B virus (HBV) and human immunodeficiency virus (HIV).”
Cal/OSHA standard also covers contact with certain body fluids Other Potentially Infectious Materials (OPIM)
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Other Potentially Infectious Materials
Semen
Vaginal secretions
Body fluids such as pleural, cerebrospinal, pericardial, peritoneal, synovial, and amniotic
Saliva (esp. in dental procedures)
Any body fluids visibly contaminated with blood
Note: Sweat, tears, and urine (unless bloody) are not OPIM
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OPIM – Saliva as a special case
During dental procedures, assume saliva to be bloody, with potential for transmission of HIV, Hep B, and Hep C
For human bites, or other exposure to non-bloody saliva: Risk of HIV transmission is
negligible; Risk of Hep B and Hep C is low,
but not zero (post-exposure medical evaluation is needed)
Human bite
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There are 50,000–100,000 BBP exposures in California HCWs per year
Hollow-bore needle sticks – about 60% of injuries In hospitals, rate is 20-30 per 100 beds per year
Equivalent to 3-10 per 1,000 clinical workers/year
Mostly in patient rooms, operating rooms, and ER Under-reporting is 50-70%
Other “sharps” injuries (mostly scalpels and surgical needles) – about 25% of injuries Blunt surgical needles – decreases risk by about 67% Surgical sharps tray and hand-off devices available Acupuncture needles (rate?)
Splashes in eyes or mouth
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Activities Most Frequently Associated with Sharps Injuries in California*
Injection 21.9%
Drawing venous blood 19.7%
Suturing 10.6%
Starting or discontinuing IV 10.2%
Procedures 9.6%
Manipulation of IV ports 7.9%
Cutting 6.3%
Finger/heel stick 4.0%
* California Sharps Injury Control Program
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Occupationally acquired HIV, by year
Source: CDC: Health Care Associated Infections (last update, May 2011)
OSHA BBPStandard
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HBV Infections in Healthcare WorkersFirst HBV vaccine licensed
Recombinant vaccine licensed
OSHA BBP Standard
Centers for Disease Control and Prevention 2002
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True or False?
Hepatitis B is easily cured.
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True or False?
Using “Standard Precautions” means handling all blood and body fluids as if they are contaminated.
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Standard Precautions
o Treat ALL body fluids as contaminated Hand hygiene Use of PPE Safe injection practices Safe handling of potentially contaminated
equipment or surfaces in the patient environment
Respiratory hygiene/cough etiquette
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Aerosol Transmissible Diseases
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Aerosol Transmissible Diseases
Diseases caused by microorganisms that travel (or are “transmitted”) from person to person through fine particles in the air (“aerosol”)
Coughing, sneezing, talking, etc. generate particles of different sizes
Some particles remain suspended in air (airborne)
Other heavier particles settle more quickly on surfaces (droplets)
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Aerosol Transmissible Diseases
“Aerosol” = Airborne and Droplet
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Aerosol Transmissible Diseases
VIDEO: How sneezes spread
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True or False?
Using Standard Precautions prevents the spread of ATDs.
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Standard precautions
Droplet precautions
Airborne isolation
Contact precautions
Precautions in Healthcare Settings
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Tuberculosis in California
Source: CDC 2015 TB Surveillance Report: https://www.cdc.gov/tb/statistics/reports/2015/default.htm
CA
TX
NY
FLRest of U.S.
0
1000
2000
3000
4000
5000
6000
1985 1990 1995 2000 2005 2010 2015
Num
ber o
f Cas
es
Proportion of TB cases, by stateTB cases in California
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Airborne Infectious DiseasesTuberculosis
Chickenpox (Varicella)
Herpes zoster (varicella-zoster, disseminated disease)
Measles (rubeola)
Avian influenza capable of causing serious human disease
Monkeypox
SARS (Severe Acute Respiratory Syndrome)
Smallpox
Airborne spore release (e.g. anthrax) until decon
Cal/OSHA added:
Any other disease or pathogen for which airborne isolation is recommended
Novel or unknown pathogens
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Droplet DiseasesInfluenza
Meningococcal disease
Mumps
Mycoplasma pneumonia
Pertussis
Rubella
Diphtheria
Plague (pneumonic)
Cal/OSHA added:
Any other disease or pathogen for which droplet precautions recommended
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True or False?
Healthcare workers are at a greater risk for ATDs than the general public during a pandemic.
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The SARS Experience
February 2003 Severe Acute Respiratory Syndrome (SARS) first recognized in Asia 8096 recorded cases; 774 deaths
HCWs were 30 percent of all cases in Hong Kong Nursing personnel were 55% of HCW cases
HCWs were 45 percent of 375 SARS cases in Ontario One physician and two nurses died
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There was “…debate during SARS over whether SARS was transmitted by large droplets or through airborne particles. The point is not who was right and who was wrong in this debate. When it comes to worker safety…we should not be driven by the scientific dogma of yesterday or even the scientific dogma of today. We should be driven by the precautionary principle that reasonable steps to reduce risk should not await scientific certainty.”
SARS Commission Final Report, Volume 3, p. 1157
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The Cal/OSHA BBP Standard
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Case #1: BBP Exposure
Facility A had established a container for patients to dispose of contaminated sharps
Employees collected these containers, opened them, and emptied them into larger boxes for waste pick up
Employees often reached into the containers by hand to gather all discarded sharps
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Contaminated sharps shall not be stored or processed in a manner that requires employees to reach by hand into the containers
The contents of sharps containers shall not be accessed unless properly reprocessed or decontaminated
Sharps containers shall not be opened, emptied, or cleaned manually or in any other manner which would expose employees to the risk of sharps injury
Case #1: BBP Exposure
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Cal/OSHA BBP Standard
Coverage:
All workplaces with potential occupational exposure (specific, identifiable activities)
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Cal/OSHA BBP Standard
Exposure Control Plan:
Written plan that addresses potential BBP hazards posed by specific activities and services at the facility
Identifies person responsible for maintaining and implementing the plan
Reviewed at least annually and updated as needed
Non-management employees must have opportunity for input on plan
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Cal/OSHA BBP StandardControl Measures :
Sharps containers – must be accessible at point of sharps use
Use of engineered sharp safety devices
Routine and terminal cleaning and disinfection of rooms
Cleaning and disinfecting of common items
Handling of contaminated waste
Availability of PPE – gloves, gowns, eye/face protection
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Cal/OSHA BBP Standard
Control Measures:
Prohibited practicesBending, recapping and removal of contaminated
sharpsReaching into containers for reusable sharps by hand Mouth pipetting Picking up broken glass by hand
Non-management employees must have opportunity for input on selection of engineering and work practice controls
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True or False?
An employee who is allergic to latex or vinyl shouldn’t wear gloves.
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Cal/OSHA BBP StandardPreventive Medical Services:
Vaccinations for Hepatitis B
Vaccinations must be provided as employer expense
Employees may decline vaccination
Post-Exposure Procedures:
Post-exposure treatment and follow-up after potential exposure incidents
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Cal/OSHA BBP StandardSharps Injury Log:
Record of sharps injuries
Requirement for “an effective procedure for periodic determination of the frequency of use of the types and brands of sharps involved in exposure incidents...”
Should contain employee’s opinions regarding how the incident could be prevented
Sharps injuries also required to be listed on OSHA Form 300
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Cal/OSHA BBP StandardEmployee Training:
Initial and annual training for employees with potential occupational exposures
Must include site-specific BBP hazards and control measures in the workplace, proper use of PPE, cover all aspects of the exposure control plan
Must provide opportunities for interactive questions and answers
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Cal/OSHA BBP ResourcesCal/OSHA BBP Standardhttps://www.dir.ca.gov/title8/5193.html
BBP FAQshttp://www.dir.ca.gov/dosh/BloodborneFAQ.html
Creating a BBP Exposure Control Planhttps://www.dir.ca.gov/dosh/dosh_publications/expplan2.pdf
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The Cal/OSHA ATD Standard
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True or False?
California is the only state in the country with an occupational health standard for aerosol transmissible diseases.
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Case #2: ATD Exposure A police welfare check found a patient unconscious in
his home. The fire department and an ambulance service arrived at the scene and transported the patient to Hospital A.
About a dozen healthcare providers worked on the patient in the ED of Hospital A, including intubation. The following day, the patient’s cerebrospinal fluid and blood tested positive for gram negative diplococci bacteria. Two days later, N. meningitides (bacterial meningitis) was confirmed in the patient’s blood.
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Case #2: ATD Exposure
Hospital A reported the case to the local health department. They may have notified the ambulance company, but no reports were provided to the police or fire departments.
A police officer and a respiratory therapist developed bacterial meningitis and were hospitalized in ICU
Cal/OSHA found that employees of all three responders at the scene (ambulance service, police and fire departments) had been exposed.
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BBP and ATD: What’s the Difference? BBP ATD
Specific, identifiable activities lead to occupational exposures
Many people potentiallyexposed to disease agents in
air or droplets
Bloodborne diseases are often silent; undetected disease is
common
Often infected individuals have cough or other obvious signs
Three named infections, which may cause chronic and serious
illness
A variety of diseases are commonly spread through this
route
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Cal/OSHA ATD StandardCoverage:
Healthcare and other higher risk settings for person-to-person transmission
Full Standard Employers
Referring Employers
Conditionally Exempt Employers
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Cal/OSHA ATD Standard
Exposure Control Plan/Infection Control Procedures:
Written plan that addresses procedures for controlling exposures to ATD hazards
Identifies person responsible for maintaining and implementing the plan
Reviewed at least annually and updated as needed
Non-management employees must have opportunity for input on plan
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ATD Pathways
Direct contact with or proximity to patient (“source”)
Shared air space, e.g., in the same room
Ventilation systems
Hand contact with mucous membranes
Fomites (from surfaces, materials)
Goal is to interrupt the pathway of disease transmission
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Cal/OSHA ATD StandardControl Measures:
Source control Respiratory hygiene/cough etiquetteHand hygiene
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Respiratory Hygiene/Cough Etiquette
Education of staff, patients, and visitors
Posted signs
Covering mouth/nose with tissues, surgical masks
Hand hygiene after contact with respiratory secretions
Spatial separation (>3 feet) in common areas
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Cal/OSHA ATD StandardControl Measures:
Engineering controls Patient placement Ventilation systems Closing doors and other openings Isolation of infectious patients (i.e., airborne infection
isolation rooms and booths) Lab hoods and biosafety cabinets
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Cal/OSHA ATD StandardReferring Employers must:
Have a written protocol for early identification of patients with symptoms or signs of TB or other airborne infectious diseases
Procedures for transferring infectious patients to a facility with adequate administrative and environmental controls, generally within 5 hours of identification
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PPE
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Cal/OSHA ATD StandardReferrals must be provided if the patient:
Has a cough for more than three weeks that is not explained by non-infectious conditions.
Exhibits signs and symptoms of a flu-like illness during March through October, the months outside of the typical period for seasonal influenza, or exhibit these signs and symptoms for a period longer than two weeks at any time during the year.
States that they have a transmissible respiratory disease, excluding the common cold and seasonal influenza.
State that they have been exposed to an infectious ATD case, other than seasonal influenza.
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Cal/OSHA ATD StandardControl Measures:
Work practice controls Cleaning and disinfection of work areas, vehicles, and
equipmentDisposal of contaminated materials/equipment Avoid creation of aerosols; apply cleaning solutions to
cloth not to surface directly
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Cal/OSHA ATD Standard
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True or False?
A surgical mask will protect a person from contracting airborne diseases.
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Surgical Masks are NOT Respirators!
Surgical Mask
N95 Respirator
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Cal/OSHA ATD StandardPersonal Protective Equipment:
Respirators Gloves Eye/face protection Gowns or coveralls
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RespiratorsA
B
C
D
E
F
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Requirements for Respirator Use Employers must:
Select an appropriate respirator Provide a confidential medical evaluation before you are
fit-tested for or use a respirator Provide a fit-test at least every year Have a written respirator program, and a respirator program
administrator Train you on the purpose of the respirator and the respiratory
hazards, how to use the respirator, the capabilities and limitations of the respirator, and what to do in an emergency
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Cal/OSHA ATD StandardPreventive Medical Services:
Vaccinations for annual flu, mumps, measles, rubella, varicella (chicken pox), and Tdap (tetanus, diphtheria and acellular pertussis)
Vaccinations must be provided as employer expense
Employees may decline vaccination
TB surveillance
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Cal/OSHA ATD StandardPost-Exposure Procedures:
Report cases of certain ATDs to local health officials (LHO)
Conduct investigation of exposure scenarios within timeframe reasonable for specific disease and no longer than 72 hours after report to LHO
Investigation must include all potentially exposed employees
Investigation should include whether other employers may have had employees who had contact with case (e.g., ambulance, paramedics, EMTs, referring physician’s office or clinic)
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Cal/OSHA ATD StandardPost-Exposure Procedures:
Notify all employees with significant exposure and refer to medical provider knowledgeable about the specific disease
Prophylaxis and treatment, when appropriate
Precautionary removal
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Sick Employees
Encourage employees to report symptoms of fever, cough, sore throat, diarrhea to supervisor or infection control personnel
Sick time policies should not penalize employees for using sick time when necessary
Ensure proper staffing levels so employees don’t feel pressure to work when ill
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Cal/OSHA ATD StandardEmployee Training:
Initial and annual training for employees with potential occupational exposures
Must include site-specific ATD hazards and control measures in the workplace, proper use of PPE, cover all aspects of the exposure control plan
Must provide opportunities for interactive questions and answers
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Cal/OSHA ATD ResourcesCal/OSHA ATD Standardhttp://www.dir.ca.gov/title8/5199.HTML
ATD Tools and Resourceshttps://archive.cdph.ca.gov/programs/ohb/Pages/ATDStd.aspx
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True or False?
I learned something valuable today that I can bring back to my workplace.
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Thank you! Kevin Riley, PhD MPHUCLA Labor Occupational Safety and Health Program (UCLA-LOSH) [email protected]